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Revenue - Schedule of Revenues Disaggregated by Revenue Source and Segment (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Jan. 01, 2022 | Jan. 02, 2021
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | $ 1,040,856 | $ 1,212,463 | $ 1,378,124
North America |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 726,884 | 814,797 | 942,100
Continental Europe |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 239,129 | 297,910 | 313,380
United Kingdom |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 47,995 | 65,820 | 84,387
Other |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 26,848 | 33,936 | 38,257
Digital Subscription Revenues |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 662,668 | 788,173 | 743,060
Digital Subscription Revenues | North America |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 436,148 | 504,152 | 484,471
Digital Subscription Revenues | Continental Europe |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 184,590 | 228,296 | 207,978
Digital Subscription Revenues | United Kingdom |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 25,421 | 36,347 | 33,919
Digital Subscription Revenues | Other |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 16,509 | 19,378 | 16,692
Workshops + Digital Fees |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 256,387 | 274,866 | 443,429
Workshops + Digital Fees | North America |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 204,115 | 210,076 | 329,885
Workshops + Digital Fees | Continental Europe |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 30,293 | 36,707 | 67,201
Workshops + Digital Fees | United Kingdom |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 15,813 | 18,709 | 33,283
Workshops + Digital Fees | Other |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 6,166 | 9,374 | 13,060
Subscription Revenues, net |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 919,055 | 1,063,039 | 1,186,489
Subscription Revenues, net | North America |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 640,263 | 714,228 | 814,356
Subscription Revenues, net | Continental Europe |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 214,883 | 265,003 | 275,179
Subscription Revenues, net | United Kingdom |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 41,234 | 55,056 | 67,202
Subscription Revenues, net | Other |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 22,675 | 28,752 | 29,752
Product sales and other, net |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 121,801 | 149,424 | 191,635
Product sales and other, net | North America |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 86,621 | 100,569 | 127,744
Product sales and other, net | Continental Europe |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 24,246 | 32,907 | 38,201
Product sales and other, net | United Kingdom |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | 6,761 | 10,764 | 17,185
Product sales and other, net | Other |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Revenues, net | $ 4,173 | $ 5,184 | $ 8,505

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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